unity8 crashed with SIGSEGV

[Pablo Caviglia]

16.10 first unity 8 run16.10 first unity 8 run

ProblemType: Crash
DistroRelease: Ubuntu 16.10
Package: unity8 8.14+16.10.20160831.3-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-9136.55-generic 4.4.16
Uname: Linux 4.4.0-9136-generic x86_64
ApportVersion: 2.20.3-0ubuntu7
Architecture: amd64
Date: Wed Sep 14 10:32:07 2016
ExecutablePath: /usr/bin/unity8
InstallationDate: Installed on 2016-09-14 (0 days ago)
InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Alpha amd64 (20160913)
ProcCmdline: unity8 --mode=full-shell
Signal: 11
SourcePackage: unity8
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2
 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2
 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
 ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1
Title: unity8 crashed with SIGSEGV
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 pushbuf_kref () from /tmp/apport_sandbox_eG50i_/usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2
 pushbuf_validate () from /tmp/apport_sandbox_eG50i_/usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2
 PUSH_KICK (push=<optimized out>) at ../../../../../src/gallium/drivers/nouveau/nouveau_winsys.h:59
 nv50_flush (pipe=0x7ff89807e5a0, fence=<optimized out>, flags=<optimized out>) at ../../../../../src/gallium/drivers/nouveau/nv50/nv50_context.c:40
 st_glFlush (ctx=<optimized out>) at ../../../src/mesa/state_tracker/st_cb_flush.c:121

[Daniel van Vugt (vanvugt)]

Thanks for your bug report.

Unfortunately we already know that the nouveau driver is unstable particularly with multi-threaded (multi-headed) rendering. The best suggestion right now is to either only use a single monitor or to use intel or radeon graphics.

Duplicate of bug 1553328.